Electromagnetic-wave signaling system



BTEC WAVE SIGNALNG SYSTEM ELECTROMAGN Sept. '26, 1919 n m if). amg?,

JEKRMAGNETEC--VIAVE SEGNALNG SYSTEM.

Application med September 56, 19'19.

To all i/:hom t may con/fern.'

Bc it known tlnit We., NORMAN 'lona' Hinz, lioto subjects of the King: of ytirent Britain resijincaj respectivelv, in Coventry" England, und Dinner, England, have jointijr invented certain nenY :intl use tul improvements in lfllectroinagrnctic-Wnve Signaling Systems, of Wbiclx tbe *following i5 e npeeiticxtion.

'Abe procent invention relates. to, improve-- ments in rnetlioils 'for controlling continuon or Hemi-continuous electromagnetic were transmitters employingl occilintingia valves, by means of a Morse key or interi-unter or both.

yitt is sometimes transmitter So that no LEA and desired to operate such n oscillationn ot any kind are produced when tbe circuit is broken o v menne oi the key or interrupter.

il. metliofl is known Wlierebv the connections of tbe grid leali across tbe grid con-- denser nre inode and broken b v means' oli zi, vlorse lzc'v or otherwise.

The objection to this method is that nl tliongli continuons oecillzitions nrc not innintained in the aerial circuityvben tbe grid leek connections are broken on, the keyr being raised.3v periodic trains of oscillations nre iiulncefi in tbc aerial circuit'.

ln order to overcome tbe periodic trains of oscillations lescribetl in tbe above :irrzinifcment it is usnnl to interrupt tbe nniin liigb tension supply. 'Vlie interruption of' tbe llxigrli tension #imply causes nrcing :it-,ross tbe controlling'contacts :intl the object of ibis invention i@ to provide means Miei-elf.; :@.ncli liiili tension Supply muy loe intcriui'itcii Witbont canning :irring to hilfe place :it :web

contacts.

,fliecortlina to tliis invention the grill or ol element is connected (-ontliiciircly permanently with tbe negative leml ot' tension fniiiplv` :intl the lie/j or inlietvvcen tbe liigli teneion supply lewin in :i circuit including' llie cr-riti :intl lie tilmnent oi the valve.

ill); this arrangement flic potentiel drop :wrom tbe interrupting contacts :it tlie nio mem ot breuk is inclnclefl in tbc grid circnil' This has the eiifcct ot causing an increase oi llie ineen negative potential of tbc grid :in-fl thereby tenfic to rerlucc the current in tbc merle circuit. :intl hence the current flowing trom tbc high tension supply lbrocigli tbe interrupting; contacts.

sind tbe bicli terr-opter is intfin'posetl @ne arrangement according to this in- Scral Eo. 523,595.

.y Pml. conjunction with env lriown means for maintaining the grid of tbe oscillatory 'valve :it :i mean negative .potential With respect. to tlic i'ilcment, such :is a battery or condenser und grid lealiln the drawing a Morse key is shown es tbe interruptor anal tbe lrev 'i is place/:l be tween the filament 2 :incl tbc negative leed i oi' tbe bien tension Supply. The reaction inrluctance coil 4 is connected with time grid whilst tbe anode 6 is connected. with :i closed oscillatoryv circuit comprising nn inflnctancc enti condenser 8. The anode corn denser 9 is nlsiccii as shown between the fileu nient and tbe positive lenti l@ bigli tension Supply.

lieving tnus clcscribcti the nature of the Sleiil invention and tbe best means We know of carrying tbe same into practical effect ivo claim l. in nn electromagnetic Wave transmitter employing' :in oscillatory valve, means `for controlling tbe trains ot ocillzitions comprising n permanent conductive connection between the control clement ot the valve and tbe necetivc lead ot tbe liigli tension supply :intl n circuit interrupting device intcrposefl in a conductor' connectingr tbe said negative lenti :intl the filament of tbe valve.

Q. ln :in electromagnetic wave transmitter employing nn oscillatory valve, means for controlling tlie trains ot oscillations coinprising; n permanent conductive connection between tlie control element of tlic valve and tlic negative lead of the 'nigh tension supply, n condenser interposed between tbc positive lend ot tbe bigb tension supply and tbc valve lilnment and a circuit interrupting device interposed in a conductor connecting the negative lead of tlie l'iigb tension supply and tbe filament.

3. in an electromagnetic wave transmitter employing :in oscillatory valve, means for controlling tbe trains of oscillations com- @rising ai permanent conductive connection between tbc control element of tbe valve and tbc ncgativevleafl of thc high tension supply, and c circuit interi-opting` device interposed between the -leigh tension supply leads in a circuit including the grid and the filament ot tbe valve.

4. ln an electromagnetic weve transmitter employing an oscillatory valve, means for controlling the trams of oscillations comi' between the control element ofy the valve prising a'permanent conductive connection between the control element of the valve and the negative lead of the high tension supply, and a circuit interruptingL device interposed in series with a condenser between the high tension supply leads.

5. In an electromagnetic wave transmitter employing an voscillatory'valve, means for controiling the trains or' oscillations, comprising a permanent conductive connection and the negative lead of the high tension supply, a condenser and a circuit interrupting device intlfnrposed in a conductor connecting the high tension supply leads and a 'permanent connection between the valve filament and a point of the said conductor intermediate between the condenser and the circuit interrupting device.

6. In an electromagnetic Wave transmitter employingan oscillatory valve, means for controlling the trains' of oscillations comprising a permanent conductive connection between the control element of the valve and the negative lead of the high tension supply,l

and a circuit interrupting device interposed between the high tension supply leads in a circuit includinr the grid and the filament of the valve, said circuit interrupting device being adapted, when closed, to connect the negative lead of the high tension supplywith.

the said condenser. l y

7. In/an electromagnetic wave transmitter employing an oscillatory valve, means for controlling the trains of oscillations comrising a permanent conductive connection tween the control element of the valve 'and the negative-lead of the hi h tension supply with the filament of the va ve, a condenser directly interposed between the point of connection of ilament and said conductor and the positive lead of the high tension supply and an oscillatory circuit connected 

